Dana and Monique are dog groomers. Dana's workday is 10 hours and Monique's workdays is 8 hours. Dana and Monique each work 40 hours per week.
On Monday, Dana groomed 15 dogs in 10 hours and Monique groomed 10 dogs in 8 hours. They each earn $12.75 for each dog groomed. Assuming that for the rest of the week Dana and Monique groom the same number of dogs per week days as they did on Monday, what would be the difference between their weekly earnings?